Science: Getting Warmer?

Is the U.S. climate getting warmer? U.S. meteorologists, observing and
charting the weather with growing exactitude over the past 20 years,
are no closer to agreement on the question than their predecessors of a
century ago. Last week a Washington convention of the American
Meteorological Society heard strong evidence to favor the warmup theory.

Dr. Richmond T. Zoch of the Weather Bureau reported that Washington
temperature records, begun in 1862, show that Washington's climate had
warmed by about 3.5° F. since then. Harvard's Dr. John H. Conover
backed Dr. Zoch. He said that a 100-year record kept at the Blue Hill
Meteorological...